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SHARP 20A1RU
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of SHARP 20A1RU Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

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Text excerpt from page 10 (click to view)
20A1-RU 21A1-RU 21A2-RU

FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
(Continued) No. point Adjusting procedure/conditions Waveform and others
No. point Adjusting procedure/conditions Waveform and others 1 CONTRAST 1. Receive "Monoscope Pattern" signal.

key 2. Set P-Mode to select CONTRAST. 9 1. Receive the "PAL COLOUR BAR" signal, press

3. Press Volume Up/Down key to check whether the the COLOUR SYSTEM key to select modes exerly. Then, select the "PAL" mode. Check again its colour so that it is working properly. 2 COLOUR key 1. Receive "Color Bar" signal. thru AV, press COLOUR SYSTEM key to select 3. Press Volume Up/Down key to check whether modes except N4.43/3.58, check the COLOUR the COLOUR effect is OK or not. is not working properly. Then, select the "NTSC 4.43/3.58" mode. Check again its colour so that it

CONTRAST effect is OK or not. cept PAL, check the COLOUR is not working prop-

2. Receive "NTSC 4.43/3.58 COLOUR BAR" signal 2. Set P-Mode to select COLOUR.

3 BRIGHTNESS 1. Receive "Monoscope Pattern" signal. is working properly.

key 2. Set P-Mode to select BRIGHTNESS.

3. Press Volume Up/Down key to check whether 10 SOUND 1. Receive "PAL-D/K" signal, press the "SOUND

BRIGHTNESS effect is OK or not. SYSTEM SYSTEM" to select B/G, I. Check the sound output is not working properly. Select D/K and check the sound output to make sure it is working properly. 2. Receive "PAL-I" signal, press the "SOUND SYSTEM" to select B/G, D/K. Check the sound output is not working properly. Select I and check the sound output to make sure it is working properly. 3. Receive "PAL-B/G" signal, press the "SOUND SYSTEM"to select I, D/K. Check the sound outthe sound output make sure it is working propKey 2. Set P-mode to select SHARPNESS. erly. 3. Press Volume Up/Down key to check whether 11 NOISE MUTE 1. Receive "PAL COLOUR BAR" signal. CHECKING 2. Turn up the volume control to maximum, make sure sound is heard from the speakers. Then put the unit in no signal state. 3. Check the sound mute is effective. 4. Finally turn sound level of CTV to minimum.

4 TINT key 1. Receive the "NTSC Colour Bar" signal thru AV in.

2. Set P-Mode to select TINT. 3. Press Volume Up/Down key to check TINT, UP

GREEN direction and DOWN for PURPLE direction whether is OK or not.

5 SHARPNESS 1. Receive "Monoscope Pattern" signal. put is not working properly. Select B/G and check

10
10-1 10-2

the SHARPNESS effect is OK or not.

6 CH DISPLAY 1. All Ch (1~99) will have an OSD display of the

COLOUR channel number in green colour under AFT ON

condition.

7 NORMAL Key 1. Once in PICTURE Mode, theNORMAL key Notes:If nothing is display 12 LANCheck OSD LANGUAGE quantity and type as Eng-

is pressed, all the settings will be present to normean contrast, colour, bright, GUAGE lish and Russian. mal setting. tint, sharpness are all in norQUANTITY (Normal setting value for every mode). mal setting. CHECK

» CONTRAST : MAX » COLOUR : CENTER » BRIGHTNESS : CENTER » TINT : CENTER » SHARPNESS : CENTER

8 WHITE TEMP 1. Receive "Monoscope Pattern" signal.

2. Set FUNCTION to select WHITE TEMP. 3. Press Volume Up/Down key to check WHITE

TEMP Option, STANDARD: NORMAL SETTING, WARM for more REDDISH direction changing, COOL for more BLUISH direction changing.

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